Apparatus for the distillation of oils.



SH. R088 64 H. SCHOHELD. PARATUS FOR THE DISTILLATION OF OILS.

APPLICATION FILED DEC. 22, 1915- Patented Nov. 14, 1916.

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1mm. I W Jm 6m rain I SIDNEY JOHN ROSS AND HARRY SGHOFIELD, OF LGNDON, ENGLAND.

APPARATUS FOR THE DISTILLATION OF OILS.

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Specification of Letters Patent.

Patented Nov. Mi, 1 91.6.

Application filed December 22, 1915. Serial No. 63,185.

To all whom it may concern Be it known that we, SIDNEY JOHN Ross and HARRY SCI-IOFIELD, both subjects of the King of- Great Britain, and residing atll'l' and 118 Leadenhall street, E. 0., in the city of London, England, have invented certain new and useful Improvements in Apparatus for the Distillation of Oils, of which the following is a specification.

This invention has reference to the'heating and distillation of oils, and more particularly relates to the treatment of potroleum or mineral oils for the production. of various distillates, for example petroleum spirit, illuminating oils, gas oils, or lubricating oils.

Now according to this invention, saddles or casings of non-conducting or heat-insulating material are provided on the furnace fine or flues of the still or boiler and are combined with hoods or nozzles preferably directed forward so that circulation may be set up in a longitudinal direction or along the top of the boiler flue. The hoods are generally but not necessarily placed where the maximum heat is obtainable, thus elfecting increased rapidity of circulation in the boiler or still, due to the great diiference in. temperature.

The hoods or nozzles may be provided with separate draw-oif pipes for the more volatile distillates. They may as distinguished from steam boiler circulators, be arranged to project well above the liquid level to cause spraying or foaming to facilitate the liberation of the products or distillates.

In order that the invention may be clearly understood and readily carried into effect reference will now be made to the examples shown in the accompanying diagrammatic drawings in which Figure 1 is a longitudinal section of a boiler or still with a single furnace flue having such a circulator device applied thereto.

Fig. 2 is a section thereof on the line 2-2, looking toward the right, While Fig. 3 is a detail section on the line 33 of Fig. .1. Fig. 4 is a detail view to a larger scale hereinafter referred to.

Referring more particularly to Fig. 1: a is the shell of the boiler or still which in this case is shown for the sake of simplicity.

after the manner of a Cornish boiler, comniunicating with an uptake or chimney such as b at the right-hand end thereof.

0 0 are the heat-insulating circulator saddlcs, diaphragms or shields, which are con centric or practically so with the furnace flue 72. They may be formed (see Fig. 4) of thin sheet material, such as iron sheets 0* combined with heat-insulating material 0 he saddles may be fitted on to the ordinary flanges (not shown) of the fine 7). They may however have turned-down ends, or be provided with flanged rings 0 at the ends as indicated in the sectional view, Fig. 3. In other cases they may be left open at the ends.

(Z (Z are the directing hoods or nozzles, which in the example shown are of inclined or wedge-shape and are forwardly directed. They are fitted over the middle of the saddle so that the convection currents, set up by the high temperature due to the Wall of the furnace flue, flow up into them as indicated in Fig. 2.

The saddles may be provided in any con jvcnient way with an insulating sheathing or layer in order to confine the heat more effectually to the narrow circulation space as above referred to.

An example of such an arrangement is shown in detail section in Fig. 4, Where 0 c are two curved sheets of meta having between them a layer of cement, mica, asbestos or other suitable heat insulator c", the Whole being held together by bolts, rivets or other- Wise. 7

lhe above improvements lead to economy by reducing fuel consumption, diminishing the temperature of distillation and reducing or entirely dispensing with the use of steam as an aid to the liberation of products, be-

sides causing less cracking of the oil and yielding improved products. The stills, too,

are less liable to be damaged by over heating or burning, and caking or settlement of residue in the still bottom is less likely to occur.

In some cases the circulating saddles or their hoods 0r cowls may he provided. with uptake pipes or funnels, to conduct more or less of the distillate; direct to the take-oh pipes, or to the outlets from the boiler or still. Such an arrangement is illustrated in connection withthe left hand hood ofl ig. 1, 0 being a pipe which is fitted over a suit direct to an ofitakc pipe vapor space in able opening in the series to conduct a portion be a pplied cenveniently in connection with fractional distillation so that the light distillatcs can no removed thereby in the early stages, after which. the pipe may be closed by a valve and the operation continued in the still itself in the ordinary Way.

Obviously the invention may be modified in various ways in carrying, the same into practice Without departing from the general nature thereof.

1. In an. oil-heating or distilling apparatus, the combination of a furnace flue, a heat insulating saddle mounted on same, and a nozzle on said saddle for directing the circulation, substantially as described.

2. In an oil-heating or distillingapparatus, the combination of a furnace line a heatinsulating saddle mounted thereon, and a tapered or wedge-like hood at the top of said saddle extending lengthwise thereof parallel with the line substantially as described.

l n an oil-heating or distilling apparatus. the combination of a furnace fine, heatinsulating; saddles mounted thereon, and nozzles on said saddles for directing the circulation in a, longitudinal direction substantially as described.

In an oil-heating or distilling apparatus, the combination of a furnace flue, a heatinsulating saddle mounted thereon, a nozzle on said saddle for directing the circulation in a longitudinal direction, and a drawbfi pipe mounted on the top of nozzle removing the distillates directly from said nozzle, subsi nti ally as described .3. ln an oil-heating or distilling apparatus; the combination of a furnace line, a sadlormed oi metal sheets with V 1a 101d nozzle extending along the top of said saddle and serving to discharge the liquid longilaulinally substantially as described.

a. in an oil-heating or distilling apparzn ins the i'zoinl'iination of a still of cylii'idrical shape, a "furnace line extending along still. a saddle mounted on said line and a. nozzle at the top of said saddle, such saddle and nozzle being formed of heat-insulating material, substantially as described.

7. .ln an oil-heating or distilling apparatus. the combination of a cylindrical still or boiler, a furnace line in same, a heat insulating saddle and a nozzle to direct the liquid along the top of the flue and so set up longitudinal circulation in the boiler, subslantially as described.

8. ln an oil-heating or distilling apparatus, thecomhination of a still or boiler, an internal furnace-flue for heating the same, a non-conducting saddle mounted on top said liue. a tapered nozzle extending along said saddle and opening only its wider end and a pipe leading up from the hood tlnrough the vapor space in the still 0 boiler to the pipe substantially a described.

in testimony whereof we our signatures in presence of two witnesses.

SIDNEY JOHN l USS. illi ill-lllll b JHOFIELN.

l' v itnesses C. Ban-sane Bnnnon. H. D; Jameson.

1;}; material between them, ".1 

